travis: fix comedi build on Ubuntu

.travis.yml

@@ -26,15 +26,18 @@ before_install:
   #- wget http://launchpadlibrarian.net/213890956/libcomedi0_0.10.2-3_i386.deb
   #- wget http://launchpadlibrarian.net/213890952/libcomedi-dev_0.10.2-3_i386.deb
   #- sudo dpkg -i libcomedi0_0.10.2-3_i386.deb libcomedi-dev_0.10.2-3_i386.deb
-  - wget http://launchpadlibrarian.net/213890962/libcomedi-dev_0.10.2-3_amd64.deb
-  - wget http://launchpadlibrarian.net/213890966/libcomedi0_0.10.2-3_amd64.deb
+  #- wget http://launchpadlibrarian.net/213890962/libcomedi-dev_0.10.2-3_amd64.deb
+  #- wget http://launchpadlibrarian.net/213890966/libcomedi0_0.10.2-3_amd64.deb
   # TODO: replace it all with epm
-  - sudo dpkg -i libcomedi-dev_0.10.2-3_amd64.deb libcomedi0_0.10.2-3_amd64.deb || sudo apt-get -f install
+  #- sudo dpkg -i libcomedi-dev_0.10.2-3_amd64.deb libcomedi0_0.10.2-3_amd64.deb || sudo apt-get -f install
+
 install:
-  # - libcomedi-dev 
-  - sudo apt-get install libcommoncpp2-dev libmysqlclient-dev libomniorb4-dev omniidl libpqxx3-dev librrd-dev libsigc++-2.0-dev libsqlite3-dev python-dev
+  - sudo apt-get install libcomedi-dev libcommoncpp2-dev libmysqlclient-dev libomniorb4-dev omniidl libpqxx3-dev librrd-dev libsigc++-2.0-dev libsqlite3-dev python-dev
 
 before_script:
+  - export CXXFLAGS='-pipe -O2 -pedantic -Wall'
+  # hack for broken comedi
+  - export LDFLAGS='-lm'
   - autoreconf -fiv
   - ./configure --disable-tests
 

configure.ac

@@ -278,7 +278,7 @@ AM_CONDITIONAL(HAVE_TESTS, test ${buildtests} = true)
 CXX_EXTRA_FLAGS="-Wnon-virtual-dtor -Wctor-dtor-privacy -Woverloaded-virtual"
 
 # export
-LDFLAGS="${OMNI_LIBS} ${XML_LIBS} ${SIGC_LIBS} ${COV_LIBS}"
+LDFLAGS="$LDFLAGS ${OMNI_LIBS} ${XML_LIBS} ${SIGC_LIBS} ${COV_LIBS}"
 # all developer liked options add to autogen.sh, please
 CXXFLAGS="$CXXFLAGS -funsigned-char -std=c++11 -g -D_GNU_SOURCE ${OMNI_CFLAGS} ${XML_CFLAGS} ${SIGC_CFLAGS} ${COV_CFLAGS} -I\$(top_builddir)/include $CXX_EXTRA_FLAGS"